4周搞定2000+托福核心词
assignment = as(表加强) + sign(信号) + ment(表名词) = 不断给人信号→布置给学生的作业
signficant = sign(信号) + fic(制造) + ant(...的) = 带有信号的→有意义的，重要的
appraisal = ap(加强) + prais(价值) + al(表名词) = 价值→估价；鉴定
approval = ap(加强) + prov(测试) + al(表名词) = 加强测试以证明可行→批准
信号；暗号
signal
常考释义
The stars being searched are hundreds of light years away, so it takes hundreds of years for their signal to reach us, and a further few hundred years for our reply to reach them.
这些我们正在搜寻的恒星距离我们数百光年，所以它们的信号传送到我们这里需要数百年，而我们做出回应也需要另外一个数百年才能到达这些恒星。
来源于：剑雅9-Test1n. 信号；暗号
He waited for the signal to speak.
他等着发言的信号。
As soon as it was dark, she gave the signal.
天一黑，她就发出了信号。
They stole it, and they're monitoring police comm signals.
他们偷了它，用来监控警方通讯信号。
来自《机器之心 第1季第5集》
图片源自网络
n. 信号；迹象；预示
They saw the visit as an important signal of support.
他们把这次访问看作是支持他们的重要信号。
n. 信号【无线电,电视,电信】
A thin cable carries the signal to a computer.
一根细电缆将信号传送给一台计算机。
n. 信号灯；指示灯【铁路】
We were held up for ages at a signal just outside Waterloo.
我们在滑铁卢站外的信号灯那里停了很长时间。
vi. 发信号；示意
He seemed to be signalling, but I didn't understand what he wanted me to do.
他似乎在向我示意，但我不明白他想让我做什么。
He signalled for the bill.
他示意结账。
vi. （开转向灯）示意；发转弯信号
If you're going to turn, you're supposed to signal.
如果要转弯，应该打转向灯示意。
vt. 传达；表达
He signalled his dissatisfaction.
他表达了不满。
vt. 向…发信号；示意
Signal the driver to move off.
示意司机离开。
vt. 标志着；是…的标志
The outcome of that meeting could signal whether there truly exists a political will to begin negotiating.
会议结果将昭示是否确实存在开始谈判的政治意愿。
adj. 出色的；显著的；重大的<正式>
Mathematics is crucial component of our culture. It can and should make a signal educational contribution.
数学是我们文化中极为重要的一个组成部分, 它能够也必将作出显著的教育上的贡献。
vt. （开指示灯）示意
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